[Patek Philippe 5146J-001 Introduction】
Launched in 2005 to increase the calendar series , in addition to platinum, platinum and gold , has added a rose gold models. Automatic winding movement with date and second hand Center . Caliber 324 is a highly efficient automatic winding device consisting of a centrally located 2k gold oscillating weight to provide energy . the difference between 330 and 324 caliber that date wheel diameter. Its slightly reduced in the Caliber 330 models , making models of Nautilus and Aquanaut date window and closer to the center of the dial .

Moon Phase : A decorated with Venus and two Golden Moon turntable , with representatives of the two Golden Moon sky blue background with representatives contrast , rotate in one window . Turntable is made from a magic crystal ( sapphire ) on a wafer made ​​of cut . In the gold vacuum evaporation and condensation through the photo template onto the turntable , the formation of the moon and stars pattern. Cutting edges are processed on the window to show the moon light and dark lines . Each first day of the lunar month , Golden Moon 's leading edge began to show in the right window , forming a crescent moon , over the moon when it rises gradually curved window shading boundary edge , then gradually from the turnaround .